Description These are some of the highest quality masts in the world. Thye are made in Europe out of the best quality pre-preg carbon. Due to their unique construction process, they offer a very high reflex response. These masts are what Aerotech sails are designed around and are all constant curve in their bends. They compliment all Aerotech model sails as well as many other brands that are designed around a constant curve. The RDM wave masts have proven to be super durable with one of the lowest warranty rates iun the industry. Construction Pre-Preg Carbon Dimensions Size Flex Diameter Carbon Weight 340 15 RDM 60% 3.15lbs 370 16 RDM 60% 3.48lbs 400 19 RDM 60% 3.94lbs 430 21 RDM 60% 4.38lbs 460 25 RDM 60% 4.60lbs Warranty Comes with a one year warranty.